Please help!
READ EACH STATEMENT. WRITE YOUR ANSWER IN THE TEXTBOX.
Carolyn and Ken are learning about the geosphere, atmosphere, biosphere, and hydrosphere. They put sand in a small swimming pool. They dug a hole in the middle and filled the hole with water. They turned a fan on and watched how the water and sand changed.
Explain what the sand, water, and fan represent in the model.
Explain the interactions the model shows between Earth’s systems.
Describe how they could add the biosphere to the model.

Rachel ate a piece of fruit and happened to drop the seeds in her backyard. after a few weeks, she saw a small plant with flowers growing in the backyard. which group does this plant belong to? a. angiosperms b. gymnosperms c. pteridophytes d. bryophytes e. chytrids

20 point pls brianliest 1. what does a red shift mean? blue shift? 2. describe the big bang theory. according to this theory, how old is the universe? 3. scientists believe the universe is expanding. what is the evidence that supports this? 4. describe a nebula. 5. describe the 3 types of galaxies. what is a barred spiral galaxy? 6. what is a light year? how far is alpha centauri from earth? 7. describe the universal law of gravitation. be sure to include gravitational force between two objects. 8. describe the planets’ orbits around the sun. 9. what is the asteroid belt? where is it located? 10. describe rotation and revolution of earth. what determines an earth day and year? 11. how do galaxies exist? 12. compare and contrast the inner and outer planets. 13. what causes the seasons?

Explain 3 specific difference or 3 specific similarities between chimpanzee and human behavior